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1 /**2 *3 * Copyright 2003-2004 The Apache Software Foundation4 *5 * Licensed under the Apache License, Version 2.0 (the "License");6 * you may not use this file except in compliance with the License.7 * You may obtain a copy of the License at8 *9 * http://www.apache.org/licenses/LICENSE-2.010 *11 * Unless required by applicable law or agreed to in writing, software12 * distributed under the License is distributed on an "AS IS" BASIS,13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.14 * See the License for the specific language governing permissions and15 * limitations under the License.16 */17 18 package org.apache.geronimo.clustering;19 20 importjava.util.List;21 22 /**23 * An interface implemented by components that wish to have their24 * state initialised from the Cluster.25 *26 * @version $Rev: 46019 $ $Date: 2004-09-14 02:56:06 -0700 (Tue, 14 Sep 2004) $27 */28 publicinterface29 DataListener30 {31 /**32 * Called by Cluster to retrieve current Cluster state.33 *34 */35 publicData getData();36 /**37 * Called by Cluster to initialise the state of a [new] node.38 *39 * @param state <code>Data</code> to be used as the node's initial40 * state.41 */42 publicvoid setData(Data state);43 }44